Elementary Statistics: Picturing the World (7th Edition)
7th Edition
ISBN: 9780134683416
Author: Ron Larson, Betsy Farber
Publisher: PEARSON
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Chapter 8.3, Problem 20E
a.
To determine
To identify: The claim and state
b.
To determine
To find: The critical value and rejection regions.
c.
To determine
To find: The value of
d.
To determine
To find: The standardized test statistic t.
e.
To determine
To decide: Whether to reject or fail to reject the null hypothesis when the level of significance
f.
To determine
To interpret: The decision in the context of the original claim.
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Students have asked these similar questions
P-values In Exercises 17–20, do the following:
a. Identify the hypothesis test as being two-tailed, left-tailed, or right-tailed.
b. Find the P- value. (See Figure 8-3 on page 364.)
c. Using a significance level of α = 0.05, should we reject H0 or should we fail to reject H0?
The test statistic of z = 1.00 is obtained when testing the claim that p > 0.3.
Applying the Concepts and SkillsIn Exercises, perform a Kruskal–Wallis test by using either the critical-value approach or the P-value approach.TV-Commercial Placement. In the article “Violence and Sex Impair Memory for Television Ads” (Journal of Applied Psychology, Vol. 87, No. 3, pp. 557–564), B. Bushman and A. Bonacci studied whether the type of television program in which commercials are placed affects a viewer’s ability to remember the product. Participants watched a violent, sexually explicit, or neutral TV program that contained nine advertisements. The next day, participants were asked to recall the advertised brands. The number of brands the participants were able to recall are presented in the following table.
Violent
Sexually explict
Neutral
0
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4
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1.000
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2
1
2
3
1
0
2
0
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At the 5% significance level, do the data provide sufficient evidence to conclude that a difference exists in the median number of advertised brands a viewer is able to recall…
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Chapter 8 Solutions
Elementary Statistics: Picturing the World (7th Edition)
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